DeepSeek
Advanced AI chatbot with reasoning
DeepSeek is a free AI chatbot from the Chinese AI research company DeepSeek, offering access to its V3.2 model with industry-leading cost-to-performance ratio. Known for excelling at coding and mathematical reasoning tasks, DeepSeek provides unlimited free web chat with a powerful reasoning mode and automatic context caching at a fraction of competitors' API costs.
Key Capabilities
DeepSeek offers its V3.2 model in two modes: a standard chat mode (deepseek-chat) for general conversations and a thinking mode (deepseek-reasoner) for advanced reasoning with chain-of-thought transparency. The model supports a context window of up to 164K tokens and features automatic context caching that reduces costs for repeated prompts. The web and mobile chat interface allows unlimited free messaging with file upload support, while the API provides the same capabilities at extremely competitive rates.
Who Should Use DeepSeek
DeepSeek is ideal for developers and researchers who need strong coding and mathematical reasoning at minimal cost, students and academics who want powerful AI without subscription fees, and organizations looking for the best cost-to-performance ratio for their AI applications. Its free web chat makes it accessible to anyone, while its competitive API pricing appeals to developers building production applications.
Getting Started
Visit chat.deepseek.com to start chatting immediately for free with the latest DeepSeek V3.2 model. Upload files for analysis, toggle thinking mode for complex reasoning tasks, and enjoy unlimited daily messaging. For API access, register at the DeepSeek platform to receive 5 million free tokens ($8.40 value) valid for 30 days to test integration.
Pricing & Accessibility: Web and mobile chat is completely free with unlimited messages within daily reset quotas. API pricing: V3.2 at $0.28/$0.42 per 1M input/output tokens (cache hits as low as $0.028), R1 reasoner at $0.50/$2.18 per 1M tokens. New API accounts receive 5 million free tokens. No subscription plans exist; free access is the standard.
Why Consider DeepSeek: DeepSeek delivers the best cost-to-performance ratio in AI, offering free unlimited web chat and API pricing up to 10x cheaper than competitors, with particular strength in coding and mathematical reasoning tasks that rival or exceed more expensive models.
Pros
- Completely free web chat with unlimited daily messaging
- API pricing up to 10x cheaper than competitors like GPT-4 and Claude
- Excellent at coding and mathematical reasoning tasks
- 164K token context window for processing large documents
- Automatic context caching further reduces API costs
Cons
- Chinese-based company may raise data privacy concerns for some users
- Free web chat has daily reset quotas during peak usage
- Smaller general knowledge base compared to GPT-4 for non-technical queries
Who is this for?
Coding assistance and debugging at zero or minimal cost, mathematical reasoning and problem solving, budget-friendly API integration for production applications, academic research and technical writing, document analysis with large context window support
Frequently Asked Questions about DeepSeek
Is DeepSeek really free?
Yes, the web and mobile chat at chat.deepseek.com is completely free with unlimited messaging within daily reset quotas. There are no subscription plans for individual users. For API access, new accounts receive 5 million free tokens, and ongoing API usage is priced at extremely competitive rates.
How does DeepSeek compare to ChatGPT?
DeepSeek excels at coding and math tasks, often matching or exceeding GPT-4's performance in these areas. Its API pricing is significantly cheaper (up to 10x less). However, GPT-4 may have broader general knowledge and more polished conversational abilities for non-technical queries.
What is DeepSeek's thinking mode?
Thinking mode (deepseek-reasoner) enables advanced chain-of-thought reasoning where the model shows its step-by-step logic before reaching a conclusion. This is particularly useful for complex mathematical problems, coding challenges, and multi-step reasoning tasks.
Pricing
freemium
Free
Free tier: Unlimited web chat with daily reset quotas; 5M free API tokens for new accounts
Details
APIYes
Open SourceYes
Mobile AppiOS & Android
LanguagesMultiple languages including English and Chinese
Learning CurveEasy
Integrations
Web chatAPImobile apps
